眉目 literally means 'eyebrows and eyes' — two facial features that together convey expression, clarity, and identity. Over time, this compound evolved metaphorically to mean 'distinct features' or 'clear outline', especially when describing the recognizable structure or essence of a situation, plan, or story. It implies something has taken shape, become understandable, or is no longer vague or chaotic.

The word is commonly used in formal and semi-formal contexts — such as reports, discussions about projects, or literary descriptions — to indicate emerging coherence. While it can refer to physical facial features (especially in classical or poetic usage), its modern, everyday use is overwhelmingly abstract: you might say a negotiation or research project finally has 'clear 眉目' once key elements are identified and organized. It carries a neutral-to-positive connotation of progress toward clarity.